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CSF pQTL study in the Japanese population [somascan]


ABSTRACT: Cerebrospinal fluid (CSF) is virtually the only one accessible source of proteins derived from the central nervous system (CNS) of living humans and possibly reflects the pathophysiology of a variety of neuropsychiatric diseases. However, little is known regarding the genetic basis of variation in protein levels of human CSF. We examined CSF levels of 1,126 proteins in 133 subjects and performed genome-wide association analysis of 514,227 single nucleotide polymorphisms (SNPs) to detect protein quantitative trait loci (pQTLs). Spearman’s correlation was used to identify association between genotypes of SNPs and protein levels. A total of 421 cis and 25 trans SNP-protein pairs were significantly correlated at a false discovery rate (FDR) of less than 0.01 (nominal P < 7.66 x 10 −9). Cis-only analysis revealed additional 580 significant cis SNP-protein pairs with FDR < 0.01 (nominal P < 2.13 x 10 −5). pQTL SNPs were more likely, compared to non-pQLT SNPs, to be disease/trait-associated variants identified by previous genome-wide association studies. The present findings suggest that genetic variations play a major role in the regulation of protein expression in the CNS. The obtained database will serve as a valuable resource for future neuropsychiatric research.

ORGANISM(S): Homo sapiens

PROVIDER: GSE83710 | GEO | 2016/12/30

SECONDARY ACCESSION(S): PRJNA326773

REPOSITORIES: GEO

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